R-T-B-BASED RARE EARTH PERMANENT MAGNET, MOTOR, AUTOMOBILE, POWER GENERATOR, AND WIND POWER-GENERATING APPARATUS
    7.
    发明申请
    R-T-B-BASED RARE EARTH PERMANENT MAGNET, MOTOR, AUTOMOBILE, POWER GENERATOR, AND WIND POWER-GENERATING APPARATUS 审中-公开
    基于R-T-B的稀土永磁体,电机,汽车,发电机和风力发电设备

    公开(公告)号:US20130099150A1

    公开(公告)日:2013-04-25

    申请号:US13807228

    申请日:2011-05-19

    IPC分类号: H01F1/01

    摘要: An R-T-B-based rare earth permanent magnet including a sintered body which is provided with a main phase mainly containing R2Fe14B, and with a grain boundary phase which has a greater R content than said main phase, wherein R denotes a rare earth element including Nd and Dy as an essential element, and the grain boundary phase includes a first grain boundary phase and a second grain boundary phase which have different atomic concentration of Dy to each other.

    摘要翻译: 一种RTB系稀土永磁体,其特征在于,具备烧结体,所述烧结体具有主要含有R 2 Fe 14 B的主相和具有比所述主相R含量更大的晶界相的烧结体,其中,R表示包含Nd的稀土元素, Dy作为必需元素,并且晶界相包括彼此具有不同的Dy原子浓度的第一晶界相和第二晶界相。